JP6979086B2 - Information processing equipment, information processing methods and information processing programs - Google Patents

Description

The present invention relates to an information processing device, an information processing method, and an information processing program that accept a user's input operation via a touch sensor.

Conventionally, there is an information processing device that detects an input operation of a user via a capacitive touch sensor and performs processing according to the input operation. In such an information processing apparatus, it is considered to expand the types of identifiable input operations in order to improve the convenience of the user.
For example, in the touch panel control device disclosed in Patent Document 1, a plurality of types of operating bodies (specifically, fingers and claws) having different electrical characteristics are assumed, and different input operations are assigned to each type of operating body. .. Specifically, the type of the operating body is determined by detecting the fluctuation amount of the capacitance generated when the operating body comes into contact with the touch surface and comparing the peak value of the fluctuation amount with the threshold value, and the operating body is concerned. It recognizes the input operation according to the type of.

Japanese Unexamined Patent Publication No. 2013-127755

However, the technique disclosed in Patent Document 1 described above has the following problems.
In Patent Document 1, the peak value of the fluctuation amount of the capacitance is used when determining the type of the operating body. In order to obtain this peak value, data indicating the amount of change in capacitance detected during the touch period from the start of contact with the touch surface to the end of contact by the operating body is required, and this touch period, The determination process for determining the type of the operating body is in the standby state. Therefore, the process of identifying the input operation cannot be performed during the touch period, and the delay time from the start of contact of the operating body with the touch surface to the execution of the process corresponding to the input operation becomes long. Further, when performing an input operation such as a content drag operation or an image drawing operation in which the operating body moves while touching the touch surface, the input operation is performed while the operating body maintains the contact state with the touch surface. A delay occurs because the processing corresponding to the above cannot be performed.

An object of the present invention is to provide an information processing apparatus, an information processing method, and an information processing program capable of shortening a delay time while expanding the types of identifiable input operations.

The information processing apparatus of the present invention has a current value acquisition unit that acquires the current value from a touch sensor that outputs a current value according to the proximity of the operating body to the touch surface, and a determination that calculates a determination value based on the current value. The value calculation unit, the standby determination unit that detects when the determination value starts to increase as the standby start time, and determines whether or not a predetermined waiting time has elapsed from the standby start time, and the standby determination unit. When it is determined that the waiting time has elapsed, the type of the operating body is determined based on the parameter calculation unit that calculates the determination parameter regarding the change in the determination value during the elapsed period of the waiting time and the determination parameter. It is characterized by including an operating body discriminating unit.

In the present invention, as the operating body starts contacting the touch surface of the touch sensor, the current value output from the touch sensor starts to increase. Therefore, in the present invention, the time point at which the determination value calculated based on the current value acquired from the touch sensor starts to increase is detected as the standby start time point, and when a predetermined wait time elapses from the wait start time point, the operation is performed. Performs processing to determine the type of body (operation body discrimination processing).
In this operation body discrimination process, a judgment parameter relating to a change in the judgment value during the elapsed period of the waiting time is used. Since the judgment value based on the current value acquired from the touch sensor shows a different change within the period in which the standby time elapses for each type of the operating body, the type of the operating body can be determined by using the judgment parameter related to this change. It can be preferably discriminated. As a result, it is possible to recognize the input operation according to the type of the operating body, and it is possible to expand the types of identifiable input operations.
Further, as described above, the operation body discrimination process of the present invention is performed when a predetermined waiting time has elapsed from the standby start time, and the contact of the operation body with the touch surface ends (the operation body separates from the touch surface). ) No need to wait. Therefore, it is possible to shorten the delay time from the start of contact of the operating body with the touch surface to the execution of the process corresponding to the input operation. Further, even while the operating body maintains the contact state with respect to the touch surface, the processing corresponding to the input operation can be performed in real time.

The block diagram which shows the touch input device which concerns on one Embodiment of this invention. The schematic diagram which shows the electrode structure of the touch sensor of the said embodiment. The figure which shows the equivalent circuit at the electrode intersection of the touch sensor of the said embodiment. The figure which shows the equivalent circuit at the electrode intersection of the touch sensor of the said embodiment. The flowchart explaining the flow of the information processing method which concerns on the said Embodiment. The graph which shows the time change of the determination value based on the current value output from the touch sensor of the said embodiment. The figure explaining the difference in the timing of type discrimination of the operation body in an Example and a comparative example. The schematic diagram which shows the current value for each unit area of the touch sensor of the said embodiment. The schematic diagram which shows the current value for each unit area of the touch sensor of the said embodiment.

[First Embodiment]
The first embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the touch input device 1 of the present embodiment performs various processes according to an operation input via the touch sensor 2 and a touch sensor 2 having a touch surface 210 with which an operating body can contact. It is provided with an information processing device 10.
The touch input device 1 is used for an electronic device such as a personal computer or a smartphone. The touch sensor 2 may be configured as a touch panel arranged so as to be superimposed on the display unit of the electronic device, or may be configured as a touch pad arranged separately from the display unit.

[Touch sensor]
The touch sensor 2 of the present embodiment employs a mutual capacitance method among the projection type capacitance methods as the touch detection method, and has a touch portion 21 having an electrode structure arranged along the touch surface 210 and a touch portion 21. It has a transmission unit 22 that transmits the drive signal Sa to the touch unit 21, and a reception unit 23 that receives the drive signal Sa via the touch unit 21.

FIG. 2 is a schematic diagram showing a specific structure of the touch sensor 2.
As shown in FIG. 2, the touch unit 21 is arranged along a direction orthogonal to the one direction with a plurality of transmission electrodes Tx (x = 1, 2, ... N) arranged along one direction. It has a plurality of receiving electrodes Rx (x = 1, 2, ... N). The electrode intersection Pi where the transmitting electrode Tx and the receiving electrode Rx intersect corresponds to a unit region of the touch surface 210, and a capacitance C ₀ is formed at each electrode intersection Pi.

The transmission unit 22 transmits the drive signal Sa, which is an AC signal, to the plurality of transmission electrodes Tx in order.
The receiving unit 23 receives the driving signal Sa in order from the plurality of receiving electrodes Rx while the driving signal Sa is being transmitted to any of the transmitting electrodes Tx. As a result, the receiving unit 23 sequentially receives the drive signal Sa transmitted from the transmitting electrode Tx to the receiving electrode Rx via each electrode intersection Pi.

Here, when the grounded operating body 3 such as a finger is close to the electrode intersection Pi, the capacitance corresponding to the operating body 3 _{interrupts the capacitance C 0} and is coupled, and is driven from the electrode intersection Pi via the operating body 3. A part of the current of the signal Sa flows out to the ground. As a result, the level (potential) of the drive signal Sa received by the receiving unit 23 decreases.
Therefore, the receiving unit 23 detects the voltage of the drive signal Sa received via each electrode intersection Pi, and the difference between the detected voltage of the drive signal Sa and the oscillation voltage of the drive signal Sa by the transmission unit 22, that is, the drive signal. The amount of change in the level of Sa is calculated. Then, the receiving unit 23 generates a detection signal Sd indicating a current value corresponding to the level change amount of the drive signal Sa for each electrode intersection Pi, and outputs the detection signal Sd to the information processing apparatus 10.

[Information processing device]
The information processing apparatus 10 is composed of a computer, and includes a storage unit 11, a control unit 12, and the like.
The storage unit 11 is a data recording device composed of a memory, a hard disk, or the like. An information processing program (software) for controlling the information processing apparatus 10 is recorded in the storage unit 11.

The control unit 12 is composed of an arithmetic circuit such as a CPU (Central Processing Unit) and a recording circuit such as a RAM (Random Access Memory). The control unit 12 expands the information processing program recorded in the storage unit 11 or the like into the RAM, and executes various processes in cooperation with the program expanded in the RAM. Then, by reading and executing the information processing program recorded in the storage unit 11, the control unit 12 reads and executes the current value acquisition unit 121, the touch detection unit 122, the determination value calculation unit 123, the standby determination unit 124, and the parameter calculation unit 125. , It functions as an operation body discrimination unit 126, an input operation identification unit 127, and an output control unit 128.

The current value acquisition unit 121 acquires the detection signal Sd output from the reception unit 23 at a predetermined cycle.
The touch detection unit 122 detects the touch point of the operating body 3 with respect to the touch sensor 2 based on the detection signal Sd acquired by the current value acquisition unit 121, and calculates the coordinate information of the touch point. For example, the touch detection unit 122 detects a touch point when the number of unit regions in which the output value of the detection signal Sd is equal to or greater than the threshold value is equal to or greater than a predetermined number, and the center of gravity of the plurality of unit regions in which the detection signal Sd is equal to or greater than the threshold value. The coordinate information is calculated as the coordinate information of the touch point.

The determination value calculation unit 123 calculates the determination value Ia based on the current value of the detection signal Sd acquired by the current value acquisition unit 121. For example, the determination value calculation unit 123 may calculate the total current value of the detection signals Sd for the plurality of unit regions of the touch surface 210 as the determination value Ia. Alternatively, the current value of the detection signal Sd corresponding to the touch point detected by the touch detection unit 122 may be calculated as the determination value Ia. In addition, the determination value calculation unit 123 can use a value based on the current value of the detection signal Sd as the determination value Ia.

The standby determination unit 124 detects the time when the determination value Ia starts to increase (the time when the determination value Ia becomes equal to or higher than the threshold value) as the standby start time Pws, and measures the elapsed time from the wait start time Pws to wait. It is determined whether or not a predetermined waiting time Tw has elapsed from the start time Pws.
When the standby determination unit 124 determines that the waiting time Tw has elapsed, the parameter calculation unit 125 calculates a determination parameter regarding a change in the determination value Ia during the elapsed period of the waiting time Tw. The details of the determination parameters will be described later.
The operating body discriminating unit 126 discriminates the type of the operating body 3 based on the determination parameter calculated by the parameter calculation unit 125.

The input operation identification unit 127 identifies the input operation according to the type of the operation body 3 determined by the operation body discrimination unit 126.
The output control unit 128 executes processing according to the input operation identified by the input operation identification unit 127.

[Operating body]
In the present embodiment, the type of the operating body 3 is a classification classified according to the electrical characteristics, and when the types of the operating body 3 are different, the route from the touch sensor 2 to the ground via the operating body 3 Impedance is different. In particular, in the present embodiment, the inside (fingers) and the outside (nail) of the user's fingers are assumed as the type of the operating body 3.

FIG. 3 is a diagram showing an equivalent circuit formed at the electrode intersection point Pi when the operating body 3 is a finger, and FIG. 4 is a diagram showing an equivalent circuit formed at the electrode intersection point Pi when the operating body 3 is a claw. It is a figure which shows. In FIGS. 3 and 4, Z0 to Z5 are impedances of substances existing around the electrode intersection Pi, and correspond to an equivalent circuit including a resistor and a capacitor.

As shown in FIGS. 3 and 4, the transmission electrode Tx is grounded via the impedance Z4, the reception electrode Rx is grounded via the impedance Z3, and the transmission electrode Tx and the reception electrode Rx are grounded by the impedance Z0. To be connected to each other.
Here, when neither the finger nor the claw operating body 3 touches the electrode intersection Pi, the electrical coupling between the transmitting electrode Tx and the receiving electrode Rx is only impedance Z0, and the transmitting electrode Tx to the receiving electrode Rx. The drive signal Sa is transmitted to the impedance Z0.

As shown in FIG. 3, when the operating body 3 (finger) touches the electrode intersection Pi, the transmitting electrode Tx and the receiving electrode Rx are connected via impedances Z1 and Z2 such as the touch surface 210 and the surface of the finger. At the same time, it is grounded via the impedance Z5 of the human body or the like.
As a result, a part of the drive signal Sa flows out from the transmission electrode Tx to the ground, and the level of the drive signal Sa transmitted to the reception electrode Rx is lowered. As a result, the detection signal Sd output from the receiving unit 23 corresponding to the electrode intersection Pi increases.

On the other hand, as shown in FIG. 4, when the operating body 3 (nail) touches the electrode intersection Pi, the transmitting electrode Tx and the receiving electrode Rx are connected via impedances Z1 and Z2 such as the touch surface 210 and the surface of the finger. At the same time, it is grounded via the impedance Z5 of the human body or the like after passing through the impedance Z6 of the nail.
As a result, a part of the drive signal Sa flows out from the transmission electrode Tx to the ground, and the level of the drive signal Sa transmitted to the reception electrode Rx is lowered. Here, as compared with the case where the operating body 3 is a finger, the amount of drive signal Sa flowing out to the ground is reduced by the impedance Z6 of the claw. As a result, the detection signal Sd output from the receiving unit 23 corresponding to the electrode intersection Pi is smaller than that when the operating body 3 is a finger.

[Information processing method]
The flow of the input operation identification process by the information processing apparatus 10 will be described with reference to the flowchart of FIG. While the information processing apparatus 10 is in operation, the current value acquisition unit 121 acquires the detection signal Sd output from the reception unit 23 at a predetermined cycle, and the determination value calculation unit 123 acquires the detection signal Sd each time. It is assumed that the determination value Ia is calculated and stored in the storage unit 11.

First, the standby determination unit 124 determines whether or not the standby start time point Pws is detected by determining whether or not the determination value Ia is equal to or higher than the threshold value Th (step S1). Here, the threshold value Th is set so that the time point at which the judgment value Ia starts to increase according to the start of contact of the operating body 3 with respect to the touch sensor 2 can be detected as the standby start time point Pws while preventing erroneous judgment due to noise. ..

In the case of Yes in step S1, the standby determination unit 124 stores the standby start time point Pws in the storage unit 11. Further, the standby determination unit 124 measures the elapsed time from the standby start time Pws and determines whether or not a predetermined standby time Tw has elapsed from the standby start time Pws (step S2). The standby time Tw is set to, for example, an arbitrary time in the range of 60 to 100 msec, preferably 60 msec.
When the standby determination unit 124 determines that the standby time Tw has elapsed (step S2; in the case of Yes), the standby determination unit 124 stores the end time point of the standby time Tw as the standby end time point Pwe in the storage unit 11. After that, the flow proceeds to step S4.

The touch duration of a general single tap operation is about 150 to 200 msec. Therefore, no matter what kind of touch operation the operating body 3 performs, there is a high possibility that the waiting time Tw (for example, 60 to 100 msec) elapses within the touch duration. However, there is a possibility that the touch ends earlier than the waiting time Tw elapses.

Therefore, when the waiting time Tw has not elapsed from the waiting start time Pws (No in step S2), the waiting determination unit 124 determines whether or not the touch of the operating body 3 is completed (step S3). .. When the touch of the operation body 3 is completed (step S3; Yes), the standby determination unit 124 stores the time when it is determined that the touch is completed in the storage unit 11 as the standby end time Pwe. After that, the flow proceeds to step S4.
On the other hand, if the touch of the operating body 3 is not completed (step S3; No), the flow returns to step S2.
When the determination value Ia changes from the threshold value Th or more to the threshold value Th or less, the standby determination unit 124 can determine that the touch of the operating body 3 is completed.

In step S4, the parameter calculation unit 125 calculates the determination parameter regarding the determination value Ia in the period from the standby start time Pws to the standby end time Pwe. This determination parameter will be described with reference to FIG. FIG. 6 is a graph showing the time change of the determination value Ia from the waiting start time point Pws, and shows an example in which the waiting time Tw is 60 msec.

As shown in FIG. 6, in the proximity stage where the operating body 3 is close to the touch sensor 2 (when 40 msec has elapsed from the standby start time Pws), the difference in the determination value Ia between the types of the operating body 3 is unlikely to occur. At the initial stage of contact (from the time when 40 msec has elapsed to the time when 60 msec has elapsed) when the operating body 3 has begun to come into contact with the touch sensor 2, the state of change in the determination value Ia for each type of the operating body 3 is clearly different. Specifically, the determination value Ia when the operating body 3 is a finger increases sharply more than the determination value Ia when the operating body 3 is a claw.
As described above, the parameter calculation unit 125 calculates at least one of the maximum value, the maximum rate of change, or the integrated value of the determination value Ia in the standby time Tw as the determination parameter capable of determining the type of the operating body 3. do it.

After that, the operation body discrimination unit 126 determines the type of the operation body 3, that is, whether the operation body 3 is a finger or a nail, based on the determination parameter calculated by the parameter calculation unit 125 (step S5; operation). Body discrimination process).
For example, the operation body discrimination unit 126 can determine that the operation body 3 is a finger when the determination parameter is equal to or more than the threshold value, and can determine that the operation body 3 is a nail when the determination parameter is less than the threshold value.
Further, when using a plurality of determination parameters, the operating body discrimination unit 126 determines that the operating body 3 is a finger when a predetermined number or more of the determination parameters are each equal to or more than the threshold value, and determines that the determination parameter is equal to or greater than the threshold value. When the number is less than a predetermined number, it can be determined that the operating body 3 is a claw. Alternatively, the operating body discrimination unit 126 may determine that the operating body 3 is a finger when all the determination parameters are equal to or higher than the threshold value, and may determine that the operating body 3 is a claw in other cases. ..

The input operation identification unit 127 performs an input operation based on the type of the operation body 3 determined by the operation body discrimination unit 126 and the coordinate information (including movement information) of the touch point detected by the touch detection unit 122. Identify (step S6). The touch detection unit 122 may detect the touch point at an appropriate timing before step S6 and calculate the coordinate information of the touch point.

As an example of step S6, the input operation identification unit 127 determines the type of touch operation (for example, tap operation, swipe operation, etc.) based on the coordinate information (including movement information) of the touch point, and determines the type of the operation body 3. The input operation can be identified by referring to a table or the like based on the combination with the type of touch operation.
Further, when the touch unit 21 of the touch sensor 2 constitutes a touch pad including a plurality of command areas, the input operation identification unit 127 identifies and operates a pointer operation as an input operation when the operation body 3 is a finger. When the body 3 is a claw, the input operation associated with the touched command area can be identified.

As a result, the identification process of the input operation by the information processing apparatus 10 is completed. After that, the output control unit 128 can execute the process corresponding to the input operation identified by the input operation identification unit 127.

〔effect〕
In the present embodiment, as described above, as the operating body 3 starts contacting the touch surface 210 of the touch sensor 2, the current value of the detection signal Sd output from the touch sensor 2 starts to increase. Therefore, the time when the determination value Ia calculated based on the current value acquired from the touch sensor 2 starts to increase is detected as the standby start time Pws, and when a predetermined standby time Tw elapses from the standby start time Pws, Performs a process of discriminating the type of the operating body 3 (manipulating body discriminating process).
In this operation body discrimination process, a judgment parameter relating to a change in the judgment value Ia during the elapsed period of the waiting time Tw is used. Since the determination value Ia based on the current value acquired from the touch sensor 2 shows a different change within a predetermined standby time Tw from the standby start time Pws for each type of the operating body 3, a determination parameter related to this change is used. Therefore, the type of the operating body 3 can be suitably discriminated. As a result, it is possible to recognize the input operation according to the type of the operating body 3, and it is possible to expand the types of identifiable input operations.
Further, as described above, the operation body discrimination process of the present embodiment is performed when a predetermined waiting time Tw has elapsed from the standby start time Pws, and it is not necessary to wait until the touch of the operation body 3 is completed. Therefore, it is possible to shorten the delay time from the start of contact of the operating body 3 with the touch surface 210 until the processing corresponding to the input operation is executed. Further, even while the operating body 3 maintains the contact state with respect to the touch surface 210, real-time processing corresponding to the input operation can be performed.

For example, FIG. 7 shows, in order to explain the effect of the present embodiment, in the embodiment and the comparative example of the present embodiment, the operating body is discriminated from the time when the operating body 3 starts contacting the touch sensor 2 (contact start time t1). The delay times T1 and T2 until the time when the processing is performed (operation body discrimination time t2) are shown. The standby start time point Pws of the present embodiment is assumed to be substantially equal to the contact start time t1.

As shown in FIG. 7, in the comparative example, the operating body discrimination process is performed by comparing the peak value of the detection signal Sd corresponding to the specific unit region of the touch sensor 2 with the threshold value, as in the prior art. In this case, the operating body determination time t2 is after the contact end time t3. Therefore, the longer the touch duration by the touch operation, the longer the delay time T1.
On the other hand, in the embodiment, the operating body discrimination time t2 is after the predetermined waiting time Tw has elapsed from the contact start time t1 regardless of the contact end time t3. Therefore, the delay time T2 of the embodiment can be made shorter than the delay time T1 of the comparative example. Further, even if the touch duration due to the touch operation becomes long, the delay time T2 remains constant. Therefore, in the embodiment, real-time processing is possible as compared with the comparative example.

In the present embodiment, the standby time Tw is set, for example, between 60 and 100 msec. That is, the standby time Tw of the present embodiment is set to be less than or equal to the touch duration (150 to 200 msec) of a general single tap operation and less than or equal to the delay time (100 to 200 msec) recognizable by humans. There is. Therefore, in the present embodiment, it is possible to suppress the user from feeling a delay in the processing according to the type of the operating body 3.
Further, as described above, since the waiting time Tw of the present embodiment is set to 60 msec or more, the difference in the determination value Ia depending on the type of the operating body 3 appears in the waiting time Tw. Therefore, the type of the operating body 3 can be suitably determined by using the determination parameter relating to the change in the determination value Ia within the elapsed period of the waiting time Tw.

In the present embodiment, the parameter calculation unit 125 calculates at least one of the maximum value of the determination value Ia, the maximum rate of change of the determination value Ia, or the integral value of the determination value Ia as the determination parameter. Thereby, the type of the operating body 3 can be suitably discriminated.

[Second Embodiment]
In the operation body discrimination process of the first embodiment described above, the type of the operation body 3 is discriminated by using the determination parameter related to the change of the determination value Ia, but in the second embodiment, the determination regarding other information is performed. The type of the operating body 3 is determined by using the auxiliary parameters together. The determination auxiliary parameters will be described with reference to FIGS. 8 and 9.

8 and 9 are diagrams showing the current value of the detection signal Sd for each unit region of the touch surface 210 of the touch sensor 2. 8 and 9 show the current value at the standby end time Pwe when the operating body 3 comes into contact with the touch surface 210, and the larger the current value, the whiter the current value.
Compared to the case where the type of the operating body 3 is a finger (see FIG. 8) and the type of the operating body 3 is a claw (see FIG. 9), only a unit region showing a high level current value is observed. However, the number of unit regions showing a current value equal to or higher than a predetermined value is large. The predetermined value can be set to a value that can be distinguished from the unit area in which the operating body 3 is not in close proximity.

Therefore, the parameter calculation unit 125, as a determination auxiliary parameter for assisting in determining the type of the operating body 3, is the distribution of the current value for each unit region at the standby end time Pwe, or the predetermined value or more at the standby end time Pwe. At least one of the number of unit regions for which the current value is calculated can be used.

In the explanation with reference to FIGS. 8 and 9, the determination auxiliary parameter is calculated based on the data of the current value for each unit area of the standby end time Pwe, but the current value during the elapsed period of the standby time Tw. The determination auxiliary parameter may be calculated based on the data obtained by integrating the above for each unit area.
Further, when the type of the operating body 3 is a finger, the number of unit regions in which the current value appears as noise is larger than that when the type of the operating body 3 is a claw. Therefore, the current value caused by such noise may be used as a kind of determination auxiliary parameter.

The operating body discriminating unit 126 determines the type of the operating body 3, that is, whether the operating body 3 is a finger or a nail, based on the determination parameter and the determination auxiliary parameter. Here, the operation body discriminating unit 126 can compare the determination auxiliary parameters with the threshold values in the same manner as the determination parameters, and can discriminate the type of the operation body 3 based on the comparison result between each parameter and each threshold value.
Further, an evaluation value based on the comparison result between each parameter and each threshold value is obtained, the evaluation value is weighted according to the importance of each parameter, and the type of the operating body 3 is discriminated based on the total evaluation value. You may.
As described above, by using not only the determination parameter but also the determination auxiliary parameter, the type of the operating body 3 can be discriminated with higher accuracy.

[Modification example]
In the above embodiment, the operating body discriminating unit 126 discriminates the operating body 3 by comparing various parameters with each threshold value. As a modification of such an embodiment, an operating body discrimination process using machine learning using AI may be performed. For example, the information processing apparatus 10 may generate a model by machine learning in which various parameters for each touch operation of the operating body 3 are input and the type of the operating body 3 is output. Thereby, the type of the operating body 3 can be discriminated with high accuracy according to the characteristics of the operating body 3 (for example, the shape of a finger or a nail).

Further, in the above-described embodiment, the fingers and nails of the user's fingers are exemplified as the types of the operating body 3, but the present invention is not limited to this, and a plurality of types of operating bodies 3 having different electrical characteristics are used. can. Further, when using three or more types of operating bodies 3, a threshold value may be set for each type of operating body 3.
Further, in the above embodiment, since the touch portion 21 has a plurality of electrode intersection points Pi, the touch surface 210 has a plurality of unit regions, but the present invention is not limited to this, and at least one electrode intersection point Pi (unit area). ) Is all that is needed.

In addition, the specific structure and procedure for carrying out the present invention can be appropriately changed to other structures and the like as long as the object of the present invention can be achieved.

1 ... Touch input device, 10 ... Information processing device, 11 ... Storage unit, 12 ... Control unit, 121 ... Current value acquisition unit, 122 ... Touch detection unit, 123 ... Judgment value calculation unit, 124 ... Standby determination unit, 125 ... Parameter calculation unit, 126 ... Operation body discrimination unit, 127 ... Input operation identification unit, 128 ... Output control unit, 2 ... Touch sensor, 21 ... Touch unit, 210 ... Touch surface, 22 ... Transmission unit, 23 ... Receiver unit, 3 ... Operating body, C ₀ ... Capacitance, Ia ... Judgment value, Pi ... Electrode intersection, Pwe ... Standby end time, Pws ... Standby start time, Rx ... Receive electrode, Tw ... Standby time, Tx ... Transmission electrode.

Claims (7)

A current value acquisition unit that acquires the current value from a touch sensor that outputs a current value according to the proximity of the operating body to the touch surface, and
A judgment value calculation unit that calculates a judgment value based on the current value,
A standby determination is detected as a standby start time when the determination value starts to increase in response to the start of contact of the operating body with respect to the touch surface, and it is determined whether or not a predetermined standby time has elapsed from the standby start time. Department and
When the standby determination unit determines that the waiting time has elapsed, the parameter calculation unit for calculating the determination parameter regarding the change in the determination value during the elapsed period of the waiting time, and the parameter calculation unit.
An information processing apparatus including an operating body discriminating unit that discriminates the type of the operating body based on the determination parameter. In the information processing apparatus according to claim 1,
The determination value is a current value in a unit region corresponding to a touch point on the touch surface.
An information processing device characterized by this. In the information processing apparatus according to claim 1 or 2.
An information processing apparatus characterized in that the standby time is set to 60 msec or more and 100 msec or less. The information processing apparatus according to any one of claims 1 to 3,
Information characterized in that the parameter calculation unit calculates at least one or more of the maximum value of the determination value, the maximum rate of change of the determination value, or the integral value of the determination value as the determination parameter. Processing equipment. The information processing apparatus according to any one of claims 1 to 4.
The current value acquisition unit acquires the current value for each unit region of the touch surface from the touch sensor, and obtains the current value.
When the standby determination unit determines that the standby time has elapsed, the parameter calculation unit determines the distribution of the current value in each unit region or the unit region corresponding to the current value equal to or higher than a predetermined value. Calculate at least one of the numbers as a judgment auxiliary parameter,
The operating body discriminating unit is an information processing device that discriminates the type of the operating body based on the determination parameter and the determination auxiliary parameter. An information processing method that uses a computer to determine the type of operating object that comes into contact with the touch surface of a touch sensor.
The computer includes a current value acquisition unit, a determination value calculation unit, a standby determination unit, a parameter calculation unit, and an operation body determination unit.
A step in which the current value acquisition unit acquires the current value from a touch sensor that outputs a current value according to the proximity of the operating body to the touch surface.
A step in which the determination value calculation unit calculates a determination value based on the current value,
The standby determination unit detects when the determination value starts to increase in response to the start of contact of the operating body with the touch surface as the standby start time, and whether or not a predetermined waiting time has elapsed from the standby start time. And the step to determine
When the parameter calculation unit determines that the waiting time has elapsed by the waiting determination unit, a step of calculating a determination parameter regarding a change in the determination value during the elapsed period of the waiting time, and a step of calculating the determination parameter.
An information processing method characterized in that the operating body discriminating unit carries out a step of discriminating the type of the operating body based on the determination parameter. An information processing program that can be read and executed by a computer.
An information processing program comprising the computer functioning as the information processing apparatus according to any one of claims 1 to 5.

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